How to Re-install windows 7 using the recovery partition from a windows 8 upgraded machine

New computers that come preinstalled with Windows 7 often have what is called a recovery partition. This is used to reinstall the operating system in the event of a system crash. To access it, you will need to boot into when you start your computer by pressing a function key. This can be either F1, F2, F9, F10, F11, F12 or even DEL or Tab key. Consult the owners manual that came with your PC for instructions about how to reinstall Windows.

This is how the recovery partition is accessed for the most popular makes..

For Dell, press CTRL + F11 directly after powering up the unit

For HP, press F11 directly after powering up the unit

For LG, press F11 directly after powering up the unit

For Toshiba, press and hold '0' BEFORE and during the power up

For Acer, press and hold ALT + F10 as soon as you see the logo

For Asus, press F9 as soon as you see the Asus logo.

For Samsung, press F4 at power up..

For Fujitsu, press the F8 key repeatedly directly after powering up

For Advent, restart your computer. Then Press F10 repeatedly until the message "Starting System Recovery" is displayed

For Sony VAIO, restart and press "F8" or "F10" repeatedly until the "Advanced Boot Options" screen appears.

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If the recovery partition is damaged, you can do the following:

Download the corresponding edition of Windows 7 you have a license for from the following link. You can identify the edition on COA sticker attached to your machine, with at bottom or battery compartment (laptop) or top/side if its a desktop computer.

COA Certificate of Authenticity:

http://www.microsoft.com/howtotell/content.aspx?pg=coa

What is the Windows Certificate of Authenticity?

http://windows.microsoft.com/en-US/windows7/What-is-the-Windows-Certificate-of-Authenticity

• Windows 7 Home Premium (x86) - 32 bit

• Windows 7 Home Premium (x64) - 64 bit

• Windows 7 Professional (x86) - 32 bit

• Windows 7 Professional (x64) - 64 bit

• Windows 7 Ultimate (x86)* - 32 bit

• Windows 7 Ultimate (x64)* - 64 bit

32 vs 64 bit

http://windows.microsoft.com/en-US/windows7/32-bit-and-64-bit-Windows-frequently-asked-questions

Is my PC running the 32-bit or 64-bit version of Windows?

http://windows.microsoft.com/en-us/windows7/find-out-32-or-64-bit

http://windows.microsoft.com/en-US/windows7/Installing-and-reinstalling-Windows-7

ImgBurn - In addtion to supporting the creation of CD's from .ISO files,
it supports a wide range of other image file formats, and it's free.
(BIN, CUE, DI, DVD, GI, IMG, MDS, NRG, PDI and ISO)
http://www.imgburn.com/

http://neosmart.net/wiki/display/G/Burning+ISO+Images+with+ImgBurn

Note: Always use the slowest burn speed (4x or 2x) if offered a choice.